That is almost the same command that I was using. No luck.

Code:
[oracle-ldap-01] ~/product/client > ./runInstaller -silent -ignorePrereq -responseFile client_install.rsp 
Starting Oracle Universal Installer...

Checking Temp space: must be greater than 80 MB.   Actual 3233 MB    Passed
Checking swap space: 0 MB available, 150 MB required.    Failed <<<<

Some requirement checks failed. You must fulfill these requirements before

continuing with the installation,


Exiting Oracle Universal Installer, log for this session can be found at /tmp/OraInstall2011-01-27_11-30-53AM/installActions2011-01-27_11-30-53AM.log